PowerMac G5 17" Studio Display Not working

Hello All,
My PM G5 tower's 17" Studio Display went blank today--no one saw when it blanked, so I don't know if it went all at once or slowly. The thing is, I don't know if it's the display or the video card. The PM is fine, since I can operate it via screen sharing. According to System Profiler, the card (GE Force FX 5200) is working and the monitor is connected properly and shows the correct resolution. I can't run hardware check since I can't screen share when starting from the DVD. Is there any other way to check to see if the problem is in the card or the monitor (other than hauling it down to the Genius bar)?
Thanks,
Lou

Hi-
If, in the case of an issue with the ADC portion of the card, often times there is no prior warning, as the failure is more often a power issue than VRAM or GPU.
With VRAM or GPU, there would be visual warnings with pixel errors, banding, and other graphical artifacts.
The system profiler is virtually worthless for detecting hardware failures.
As for the display, the inverter board is not that uncommon of a failure.
Typically, though, this is accompanied by a flashing power light on the display(short, short, long):
http://support.apple.com/kb/HT2811?viewlocale=en_US
The inverter board may be replaced using this guide:
http://mac-guild.org/display-repair.html
A board may be purchased from someone like this:
http://www.lcdparts.net/inverterbypartnumber.aspx

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Yes.. i think thats what might have damaged it...Notebook should always be completely powered off with the battery out and ac adapter disconnected while replacing any internal hardware..
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Note:
If you have HP Support Assistant installed on the computer(The Blue Question Mark) then open it ==> Complete all pending Updates & Tuneups==> Restart and Check. It may solve your problem
Although I am an HP employee, I am speaking for myself and not for HP.
**Click on “Kudos” Star if you think this reply helped** Or Mark it as "Solved" if issue got fixed.

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